Update README

Author: dorranh

README.md

@@ -1,2 +1,26 @@
 # Bluetooth-Arduino-Prosthetic-Control
 This sketch is to be used in conjunction with Mediapipe Prosthetic Hand Controller
+
+## Supported hardware
+
+This sketch is currently designed to work with the following Arduino boards:
+  * [adafruit Feather ESP32](https://www.adafruit.com/product/3405)
+
+## Installation
+
+### Command Line
+To build this sketch on the command line, you will need the following tools installed. Please see their respective installation guides for instructions on how to install them.
+
+  1. [make](https://www.gnu.org/software/make/) - Installation of `make` is OS-dependent. The provided link includes a download page for installing make on OSX and Linux. (See [here](https://stackoverflow.com/questions/32127524/how-to-install-and-use-make-in-windows) for more info on installing on Windows).
+  1. [arduino_cli](https://arduino.github.io/arduino-cli/latest/)
+
+With those installed you can build the sketch with:
+
+```shell
+$ make build
+```
+For deploying the sketch please see the additional info on the [arduino-cli site](https://arduino.github.io/arduino-cli/latest/getting-started/#compile-and-upload-the-sketch).
+
+### Arduino IDE
+
+TODO